December 1975 and the UK's music charts were rocked by a totally unexpected Christmas number one.

Queen's Bohemian Rhapsody beat all competition to grab the much-coveted festive number one slot.

Not only that but the iconic song remained at the top of the charts for nine weeks.

It is still the only song to get to number one in Britain twice with the same version and is also the only single to have been Christmas number one twice with the same version.

At alost six minutes long, there were fears it would never be played on the radio and could never be a hit.

Freddie explained how Bohemian Rhapsody came about

In fact, record company bosses were so worried about the length of the song that they told the band, fronted by Freddie Mercury, that it should never be released.

Freddie explained: "We came across certain barriers because it was six months long and there were numerous rows.

The recording company wanted to edit it but we thought 'there's no point, you either hear it in it's entirety or you pick another song."

Queen were determined the song would be heard - and thanks to the backing of Freddie's good friend and Radio One DJ, Kenny Everett - it soared to the top of the charts.

Musician and friend of Freddie's, Steve Norman, said: "Kenny kept putting it on again and again. He told the listeners he wasn't supposed to be playing it but that his finger had slipped."

Queen were determined the song would be released in its entirety

Kenny played the song a massive 14 times in two days.

And when it reached the top spot, Queen wanted to thank fans in the best way possible - by organising a Christmas Eve gig in London.

With its unusual composition, Bohemian Rhapsody is made up of several parts - the intor, a ballad segment, an operatic passage, ahard rock section and a reflective coda.

In an unearthed interview, Freddie Mercury has revealed how the unusual song came into being.

Read More

Best selection of showbiz long reads

He explained: "Bohemian Rhapsody happened to be three songs that I wanted to put out and I just put them together."

Freddie had always refused to explain the meaning behind the lyrics and simply claimed it was about relationships.

He once said: "It's one of those songs which has such a fantasy feel about it. I think people should just listen to it, think about it, and then make up their own minds as to what it says to them... Bohemian Rhapsody didn't just come out of thin air.

"I did a bit of research, though it was tongue-in-cheek and mock opera. Why not?"